I have never heard of Tristan and Isolde (sp?) or the knights that everyone seems to talk about. See what happens when you don't pay attention in school? :)
It's a movie too.Seriously, I recommend watching it. It's very good. It's basically an Arthurian version of Romeo and Juliet. I can almost guarantee you will never think of Tristan as a feminine name again after seeing it. It's just called Tristan and Isolde.